v3.26.3
Loans Held for Investment and the Allowance for Credit Losses - Additional Information (Details)
 3 Months Ended 9 Months Ended
Sep. 30, 2026
USD ($)
loan
Jun. 30, 2026
USD ($)
Mar. 31, 2026
USD ($)
Sep. 30, 2025
USD ($)
Sep. 30, 2026
USD ($)
loan
Sep. 30, 2025
USD ($)
Dec. 31, 2025
USD ($)
loan
Accounts, Notes, Loans and Financing Receivable [Line Items]              
Accrued interest, location Accrued interest and fees receivable       Accrued interest and fees receivable   Accrued interest and fees receivable
Accrued interest $ 19,600,000       $ 19,600,000   $ 17,200,000
Total loan commitment 5,168,717,000       5,168,717,000   4,290,603,000
Unfunded loan commitments 236,552,000       236,552,000   173,595,000
Total loan repayments         $ 517,600,000    
Number of loans sold | loan         1    
REO, unpaid principal balance 42,800,000       $ 42,800,000    
Unamortized loan fees included in Loans Held for Investment 17,500,000       17,500,000   15,000,000.0
Unamortized discounts included in loans held for investment at amortized cost $ 600,000       $ 600,000   $ 0
Weighted average risk rating 3.0       3.0   3.0
Allowance for credit loss, (decrease) increase $ (4,500,000)     $ (2,600,000) $ (1,300,000) $ 2,200,000  
Loans written off related to a REO conversion (13,000,000.0)       (13,000,000.0)    
Allowance for credit loss, decrease from full loan repayments 400,000     2,800,000 1,300,000 6,500,000  
Increase (decrease) in allowance for credit loss for macroeconomic events 5,000,000.0     (1,100,000) 6,000,000.0 4,100,000  
Allowance for credit losses increase due to loan origination $ 3,900,000     $ 1,200,000 $ 7,000,000.0 $ 4,600,000  
Individual assessment, number of loans | loan 0       0   0
Nonaccrual, number of loans | loan 0       0   1
Financing Receivable, nonaccrual             $ 41,000,000.0
Loans accrued interest income $ 0       $ 0   0
Number of loans modified during the period | loan         1    
Accrued paid in kind interest outstanding $ 2,285,000 $ 1,402,000 $ 1,223,000   $ 2,285,000   $ 1,042,000
Number of loans accrued paid in kind interest outstanding | loan 2       2    
Accrued PIK interest $ 883,000 $ 179,000 $ 181,000   $ 1,200,000    
Extended Maturity and Interest Rate Reduction              
Accounts, Notes, Loans and Financing Receivable [Line Items]              
Number of loans modified during the period | loan 1            
Loan modified in the period         $ 33,100,000    
Financing receivables modified in the period as a percentage of total financing receivables         1.00%    
Thirteen Mortgage Loans              
Accounts, Notes, Loans and Financing Receivable [Line Items]              
Number of mortgage loans | loan         13    
One Mortgage Loans              
Accounts, Notes, Loans and Financing Receivable [Line Items]              
Number of mortgage loans | loan         1    
Total loan commitment $ 1,400,000,000       $ 1,400,000,000    
Unpaid principal balance refinanced 1,300,000,000       1,300,000,000    
Unfunded loan commitments $ 100,000,000       $ 100,000,000    
Four Mortgage Loans              
Accounts, Notes, Loans and Financing Receivable [Line Items]              
Number of mortgage loans | loan         4    
Loan repayment principal amount         $ 425,800,000    
Two Mortgage Loans              
Accounts, Notes, Loans and Financing Receivable [Line Items]              
Number of mortgage loans | loan         2    
Proceeds from partial principal payments         $ 91,800,000